/*
 * 透明度
 * @see http://css-tricks.com/css-transparency-settings-for-all-broswers/
 */
.opacity-30() {
    zoom: 1;
    filter: alpha(opacity=30);
    opacity: 0.3;
        
}
.opacity-60() {
    zoom: 1;
    filter: alpha(opacity=60);
    opacity: 0.6;
        
}
.opacity-80() {
    zoom: 1;
    filter: alpha(opacity=80);
    opacity: 0.8;
        
}

/*
 * 圆角
 */
 .rounded(@value) {
    -moz-border-radius: @value;
    -webkit-border-radius: @value;
    border-radius: @value;
}
